在钻井施工中,有时在交井试压时达不到试压标准,对于漏失量很大的井采用常规找漏工具容易确定套管漏失点的位置,而对于漏失量很少、稳压时间长的井就无法确定。因此,我们研制了一种新型的套管测漏工具。它与套管接触面积大,承压能力强,不易损坏,在钻井修井现场应用42井次,获得了成功,解决了生产难题。 In drilling construction, the pressure test standard is sometimes not reached at the time of pressure well test. For the well with large amount of leakage, it is easy to determine the position of the casing leakage point by using a conventional leak finding tool. However, Long well can not be determined. Therefore, we developed a new type of casing leak detection tool. It has a large contact area with the casing, strong pressure-bearing capability and is not easily damaged. In the field of well drilling and well servicing, 42 wells were successfully used to solve the production problem.